公开(公告)号：WO2014116933A3

公开(公告)日：2014-11-20

申请号：PCT/US2014012927

申请日：2014-01-24

Applicant: RF MICRO DEVICES INC

Inventor： KHLAT NADIM ,  KAY MICHAEL R ,  NAG MANBIR SINGH

IPC: H03F3/189 ,  H02M1/00 ,  H02M3/158

CPC classification number: H03F1/0227 ,  H02M2001/0045 ,  H03F1/0266 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/375 ,  H03F2200/432 ,  H03F2200/451 ,  H03F2200/471 ,  H03F2200/555

Abstract: A parallel amplifier and a parallel amplifier power supply are disclosed according to one embodiment of the present disclosure. The parallel amplifier power supply provides a parallel amplifier power supply signal, which is adjustable on a communications slot-to-communications slot basis. During envelope tracking, the parallel amplifier regulates an envelope power supply voltage based on the parallel amplifier power supply signal. The parallel amplifier and an offset capacitance voltage control loop are disclosed according to an alternate embodiment of the present disclosure. The parallel amplifier has a parallel amplifier output, which is coupled to an envelope tracking power supply output via an offset capacitive element. The offset capacitive element has an offset capacitive voltage. The offset capacitance voltage control loop regulates the offset capacitive voltage, which is adjustable on a communications slot-to-communications slot basis.

Abstract translation: 根据本公开的一个实施例公开了一种并行放大器和并行放大器电源。 并联放大器电源提供并行放大器电源信号，可以在通信插槽到通信插槽的基础上进行调整。 在包络跟踪期间，并联放大器基于并行放大器电源信号调节包络电源电压。 根据本公开的替代实施例公开了并联放大器和偏移电容电压控制环路。 并联放大器具有并联放大器输出，其通过偏移电容元件耦合到包络跟踪电源输出。 偏移电容元件具有偏移电容电压。 偏移电容电压控制回路调节偏移电容电压，其可以在通信插槽到通信插槽的基础上进行调整。

公开(公告)号：WO2013063387A3

公开(公告)日：2014-05-30

申请号：PCT/US2012062110

申请日：2012-10-26

Applicant: RF MICRO DEVICES INC

Inventor： KHLAT NADIM ,  KAY MICHAEL R ,  GORISSE PHILIPPE

IPC: H02M1/15 ,  H02M3/156 ,  H03F1/02

CPC classification number: H02M3/156 ,  H02M1/15 ,  H02M2001/0045 ,  H02M2001/0048 ,  H03F1/0216 ,  H03F3/2171 ,  Y02B70/1491

Abstract: A direct current (DC)-DC converter, which includes a parallel amplifier and a switching supply, is disclosed. The switching supply includes switching circuitry, a first inductive element, and a second inductive element. The parallel amplifier has a feedback input and a parallel amplifier output. The switching circuitry has a switching circuitry output. The first inductive element is coupled between the switching circuitry output and the feedback input. The second inductive element is coupled between the feedback input and the parallel amplifier output.

Abstract translation: 公开了一种包括并联放大器和开关电源的直流（DC）-DC转换器。 开关电源包括开关电路，第一电感元件和第二电感元件。 并联放大器具有反馈输入和并行放大器输出。 开关电路具有开关电路输出。 第一电感元件耦合在开关电路输出和反馈输入之间。 第二电感元件耦合在反馈输入端和并行放大器输出端之间。

公开(公告)号：WO2013012787A3

公开(公告)日：2013-03-14

申请号：PCT/US2012046887

申请日：2012-07-16

Applicant: RF MICRO DEVICES INC

Inventor： KHLAT NADIM ,  KAY MICHAEL R

IPC: H03F1/32 ,  H03F1/02 ,  H03F3/24 ,  H03G3/00 ,  H03G3/30 ,  H04B17/00

CPC classification number: H04B1/0475 ,  H03F1/0227 ,  H03F1/305

Abstract: Radio frequency (RF) transmitter circuitry, which includes an RF power amplifier (PA) and an envelope tracking power supply, is disclosed. The RF PA receives and amplifies an RF input signal to provide an RF transmit signal using an envelope power supply signal. The envelope tracking power supply provides the envelope power supply signal, which has switching ripple. Further, the envelope tracking power supply operates in either a normal switching ripple mode or a modified switching ripple mode, such that during the normal switching ripple mode, the envelope power supply signal has normal switching ripple, and during the modified switching ripple mode, the envelope power supply signal has modified switching ripple. When the modified switching ripple is required, the envelope tracking power supply operates in the modified switching ripple mode.

Abstract translation: 公开了射频（RF）发射器电路，其包括RF功率放大器（PA）和包络跟踪电源。 RF PA接收并放大RF输入信号以使用包络电源信号提供RF发送信号。 包络跟踪电源提供具有开关纹波的包络电源信号。 此外，包络跟踪电源以正常开关纹波模式或修改的开关纹波模式操作，使得在正常开关纹波模式期间，包络电源信号具有正常的开关纹波，并且在修改的开关纹波模式期间， 包络电源信号具有修改的开关纹波。 当需要修改的开关纹波时，包络跟踪电源以修改后的开关纹波模式工作。